https://r2.erweima.ai/mathbot/image/172546371870519fhaznl.jpg

The image provided is about the design of a beam with steel in tension (diseño de viga con acero en tracción). Here's a breakdown of the key elements in the image:

### 1. **Given Data:**
   - **Wu** is the ultimate load on the beam, calculated as:
     \[
     Wu = 1.2W_D + 1.6W_L
     \]
     The resulting value of \( Wu \) is **639.32 kgf/m**.

### 2. **Moment Calculations:**
   - **MBC**: Moment at the left end (between supports B and C) = **25.153 kgf/m**.
   - **MAB**: Moment at the center of the beam (between supports A and B) = **7.563 kgf/m**.
   - **MAB**: Moment at the right end (between supports A and B) = **21.490 kgf/m**.

### 3. **Beam Diagram:**
   - The beam is subject to the ultimate load \( Wu \) across its span.
   - The span has multiple segments:
     - **A to B**: 5.0 meters.
     - **B to C**: 7.0 meters.

### 4. **Recommendation:**
   - The problem suggests using the **rigidity method** (método sistematizado de rigidez) to solve the beam.

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Would you like details on the rigidity method, or a specific calculation or explanation? Here are five follow-up questions that might be of interest:

1. How is the ultimate load \( Wu \) derived from the given dead and live loads?
2. What is the rigidity method and how is it applied in beam analysis?
3. Can you explain how the moments at different points of the beam are calculated?
4. How would different boundary conditions affect the moments and forces in the beam?
5. What are the steps to check the design for safety and stability?

**Tip:** Always double-check the boundary conditions and load combinations when calculating moments and forces in structural analysis.

Ejercicio 02: diseño de viga con acero en tracción

In this exercise, learn how to design a beam with steel in tension, calculate the ultimate load Wu, and analyze the moments using the rigidity method. Key concepts include structural engineering, moment calculations, and the application of the rigidity method in beam design. Suitable for undergraduate engineering students.

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